Mixing and grinding appartus.



R. D. MADDOX.

MIXING AND GRINDING APPARATUS,

APPLICATION FILED NOV. 26. 1918.

1 ,301 ,070, Patented Apr. 15, 1919.

R. D. MADDOX.

MIXING AND GRINDING APPARATUS.

APPLICATION FILED NOV- 26, 1918-. 1,301 ,070, Patented Apr. 15, 1919.

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MIXING AND GRINDING APPARATUS.

Specification of Iietters latent.

Patented Apr. 15, 1919.

Application filed November 26, 1918. Serial No. 264,228.

To all whom it may concern Be it known that I, ROBERT D. MADDOX, major,Med. Dept, United States Army, a citizen of the United States, stationedat Washington, D. 0., have invented an Improvement in Mixing andGrinding Apparatus, of which the following is a specification.

The invention described herein may be used by the Government, or any ofits oiiicers or employees in prosecution of work for the Government, orby any other person in the United States, without payment of any royaltythereon.

This invention relate to apparatus for mixing, amalgamating, andgrinding various substances or compounds, either dry, liquid, orsemi-liquid, and has for one of its objects to produce an apparatuswhereby the contents of a container may be thoroughly disintegrated andcommingled by r0- tating the container, the latter being mounted uponrotating rollers.

Another object of the invention is to provide a container adapted torapidly move its contents from end to end while being rotated. I Anotherobject of the invention is to produce a device of this character adaptedto support a plurality of independent containers with means forindependently rotating them, and so constructed that the containers areloosely supported and adapted to be removed one at a time and replacedby other containers.

With these and other objects in view the invention consists in certainnovel features of construction as hereinafter shown and described andthen specifically pointed out in the claims; and in the drawingsillustrative of the preferred embodiment of the inven-' tion Figure 1 isa side elevation.

Fig. 2 is a transverse section on the line 2-2 of Fig. 1.

Fig. 3 is an end elevation.

The improved apparatus comprises pri-. marily a receptacle for thematerial or product to be mixed or ground and mounted upon rollersdisposed in spaced relation and rotated in the same direction, thereceptacle being thus correspondingly rotated and the contentsthoroughly mixed and commingled. The receptacles are preferably formedelliptical at the opposite ends with the longer axes at rlght angles toeach other at the oughly intermingle and mix the same.

The receptacles may be constructed of any suitable material but willpreferably be of glass, porcelain lined metal, vitrified ware, leadlined, or otherwise constructed to resist the action of acids or thelike. For the purpose of illustration the receptacles, indicated at 10,are each formed with a contracted nozzle or mouth 11, having a suitablestopper indicated at 12. but it is not desired to limit the form of thecontainers or the material of which they are constructed. The rotatingrollers may be of any required length and size and adapted to supportany required number of the receptacles. Preferably the rollers will bearranged in pairs one-above the other and supported for rotation in auitable framework. For the purpose of illustration a conventionalframework is shown comprising vertical standards 13 of sections of Ibeams each with a laterally, constructed foot or base member 14, andlaterally branching head members 15. The base members 14 are providedwith'bearings 16 through which tie rods 17 are supported, while the headmembers 15 are provided with bearings 18 to support tie rods 19. Therods 17 and 19 are surrounded by tubular spacing members as indicated inFigs. 2 and 4. By this means the standards 13 are efl'ectually supportedin vertical position and in. paced relation. The rotators may be of anyrequired length to correspond to the number of receptacles to beemployed.

The base members 14 are formed with bearings 20 to receive the journalsof shafts 21. Attached to the standards 13 are bracket devices 22 eachcarrying a bearing 23 to support the journals of shafts 24. Thestandards may be of any required height to carry any required number ofthe brackets, but one set of the brackets only are shown for the purposeof illustration.

The shafts 21-24 support roller-devices 25, preferably of wood and eachprovided with a jacket or covering 26 of suitable yielding material. Theyieldable ackets less chain 28 is disposed, and the shafts 24 arelikewise extended at one end to receive chain wheels 29 over which anendless chain 30 operates. One of the shafts 24: and one of the shafts21 are further extended to receive chain wheels 3132 over which anendless chain 33 operates. The shaft 21 which con tains the chain wheel32 is further extended as shown in Fig. 1 to receive the rotatingmedium, notshown.

It will be obvious by this arrangement that when the last mentionedshaft is rotated by any suitable power the sets of rollers will besimultaneously rotated in the same direction through the action of thechains, and when the receptacles 10 are disposed upon the rollers as,shown, the receptacles will be rapidly rotated and cause their contentsto be thoroughly mixed, ground, or commingled, as before described, andthrown from end to end at the same time.

The receptacles being disposed loosely upon the rollerscan be removedone at a time and replaced by other receptacles without disturbing theremaining receptacles. Thus compounds or material of various kinds maybe operated upon at the same time and the contents of the various receptacles separately retained. v e

The improved device may be employed for grinding or mixing varioussubstances either powdered, liquid or semi-liquid, as may be required,and willbefound of's'pe'cia'l advantage in'grinding or mixing lymph orcompounds employed in vaccination or inoculationsof various'kinds. Thedevice may be 'Gopies Of this atent may be obtained 161' arranged forrelatively large containers and likewise be employed for mixingconcrete,

same direction, and a container resting by its side walls upon saidrollers and rotated thereby, said container being elliptical at itsopposite ends with the major axes of the elliptical portions at anglesto each other.

3. In an apparatus of the-class described, a container elliptical at itsopposite ends and with the major axes. of the elliptical portions atangles to each other and the sidewalls continuous from end to end.

4. In an apparatus of the classdescribed, a support including verticalstandards in spaced relation, means for connecting said standards, aplurality of brackets connected to said standards at opposite sides andincluding shaft bearings, rollers having journals engaging in saidbearings, means for rotating each pair of said rollers in the samedirection, and 'a container restingjupon each pair of said 'rollers'an'drotated thereby, said container being elliptical at its opposite ends,with the major axes of the elliptlcal portions at angles to eacho'ther,

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